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经营范围
发明名称
Zone refining apparatus
摘要
申请公布号
GB890668(A)
申请公布日期
1962.03.07
申请号
GB19590041134
申请日期
1959.12.03
申请人
MINNESOTA MINING AND MANUFACTURING COMPANY
发明人
FRITTS ROBERT WASHBURN;KARRER SEBASTIAN
分类号
C30B13/18;H01L35/00
主分类号
C30B13/18
代理机构
代理人
主权项
地址
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